// The MIT License (MIT)
// 
// Copyright (c) 2015-2025 Rasmus Mikkelsen
// https://github.com/eventflow/EventFlow
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Concurrent;
using System.Reflection;
using EventFlow.Elasticsearch.ValueObjects;
using EventFlow.Extensions;
using EventFlow.ReadStores;
using Nest;
using IndexName = EventFlow.Elasticsearch.ValueObjects.IndexName;

namespace EventFlow.Elasticsearch.ReadStores
{
    public class ReadModelDescriptionProvider : IReadModelDescriptionProvider
    {
        private static readonly ConcurrentDictionary<Type, ReadModelDescription> IndexNames = new ConcurrentDictionary<Type, ReadModelDescription>();

        public ReadModelDescription GetReadModelDescription<TReadModel>() where TReadModel : IReadModel
        {
            return IndexNames.GetOrAdd(
                typeof(TReadModel),
                t =>
                    {
                        var elasticType = t.GetTypeInfo().GetCustomAttribute<ElasticsearchTypeAttribute>();
                        var indexName = elasticType == null || string.IsNullOrEmpty(elasticType.RelationName)
                            ? $"eventflow-{typeof(TReadModel).PrettyPrint().ToLowerInvariant()}"
                            : elasticType.RelationName;
                        return new ReadModelDescription(new IndexName(indexName));
                    });
        }
    }
}